apTreeshape: Analyses of Phylogenetic Treeshape

apTreeshape is mainly dedicated to simulation and analysis
of phylogenetic tree topologies using statistical indices. It
is a companion library of the 'ape' package. It provides
additional functions for reading, plotting, manipulating
phylogenetic trees. It also offers convenient web-access to
public databases, and enables testing null models of
macroevolution using corrected test statistics. Trees of class
"phylo" (from 'ape' package) can be converted easily.